Theory

CH17 - INHERITANCE

In rabbits, the allele for dark fur, R, is dominant to the allele for white fur, r.The diagram shows a cross between a rabbit with dark fur and a rabb...

2011 Summer

3

Theory

CH17 - INHERITANCE

What is always found in female gametes and may be found in male gametes?A. one X chromosomeB. one Y chromosomeC. two X chromosomesD. one X chromosome ...

2011 Summer

2

Theory

CH17 - INHERITANCE

Haemoglobin is a large protein molecule. The structure of each haemoglobin molecule is controlled by a gene that has two alleles:• $Hb^A$ codes for ...

2011 Winter

2

Theory

CH17 - INHERITANCE

How does a haploid nucleus differ from a diploid nucleus of the same species? A It has different genes. B It has fewer chromosomes. C It has more a...

2012 Winter

2

Theory

CH17 - INHERITANCE

The diagram shows a maize (corn) cob with purple and yellow fruits. Purple (P) is dominant to yellow (p). What are the genotypes of the parent maize p...

2009 Summer

3

Theory

CH17 - INHERITANCE

A pure-breeding white mouse was crossed with a pure-breeding black mouse. All their offspring were black.Then, one of the offspring was bred with a pu...

2012 Winter

2

Theory

CH17 - INHERITANCE

In some animals, B is the allele for normal skin (without spots) and b is the allele for spotted skin.A pair of these animals has 37 offspring, 18 wit...

2010 Winter

2

Theory

CH17 - INHERITANCE

Which type of reproduction and which type of cell division produces nuclei with half the number of chromosomes?[Table_1]type of reproductiontype of ce...

2010 Winter

2

Theory

CH17 - INHERITANCE

What is true of the chromosomes present in the daughter nuclei after meiosis and after mitosis?[Table_1]

2009 Summer

3

Theory

CH17 - INHERITANCE

What is a mutation?A a change in a gene or chromosomeB a condition caused by a recessive alleleC a process used in genetic engineeringD a type of ...

2009 Summer

1

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

Some yeast, sugar and water are mixed in a test-tube. The diagrams show the test-tube at the start and after one hour. Which process causes this chan...

2016 Summer

3

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

Which name is given to a group of individuals that can reproduce to produce fertile offspring?

2016 Summer

2

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

Use the key to identify the animal shown in the diagram.

2016 Summer

2

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

Which organelles are present in large numbers in cells that produce insulin?

2016 Summer

2

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The actual thickness of the leaf shown in the diagram is 2000 \mu m, but its thickness in the diagram is 50 mm. What is the magnification of the diag...

2016 Summer

2

MCQ

CH3 - MOVEMENT IN AND OUT OF CELLS

The diagram shows an experiment on osmosis. Which arrow shows the direction of the net movement of water at the start of the experiment?

2016 Summer

2

MCQ

CH3 - MOVEMENT IN AND OUT OF CELLS

Active transport is the movement of

2016 Summer

2

MCQ

CH4 - BIOLOGICAL MOLECULES

When bases pair up in the formation of DNA, what is one of the pairings? [Options provided]

2016 Summer

1

MCQ

CH4 - BIOLOGICAL MOLECULES

Small molecules are used as the basic units in the synthesis of large food molecules. Which statement is correct?

2016 Summer

2

MCQ

CH5 - ENZYMES

Which graph shows the effect of temperature on the activity of an enzyme?

2016 Summer

2